From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1AF44280A5A for ; Sun, 29 Mar 2026 13:19:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774790359; cv=none; b=s5DPjjlnjPsX1W+vV+5tjooMB8394RtYXkvHgjwOYWtg8s3ww9MH5SGiI3tLfM75YmX676bAfL/1E+kp3yZxMzj51vR2xeYzQVU0pn9XnTJQ7vdrFD9DPYejJySSKra8BRjkBJ+OuBSV7C0jAMb7uyt4anVKjfqpwtCSZwnXj3k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774790359; c=relaxed/simple; bh=RURITcbB0Bsp29w9Zpav/L7+4gCjI+guK61mbHSYQF8=; h=Subject:To:From:Date:Message-ID:MIME-Version:Content-Type; b=eps5pMVcH1cOacm3dnNDse9QzqvFIAsejA91fNEtmBTAB/VGaiq3c5w52PNqGfK7CReeuFm5Qyh9Dge9l69xlK1w8jaCOZcPXbDIlnrBsUT4JBW2l7TBM3txe5upA3RKb8bUBqnn5jpJ28ARx/tnIsvriF8jvpT+HFuRSwd+b/Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=fnOuLh96; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="fnOuLh96" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F74FC116C6; Sun, 29 Mar 2026 13:19:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1774790359; bh=RURITcbB0Bsp29w9Zpav/L7+4gCjI+guK61mbHSYQF8=; h=Subject:To:From:Date:From; b=fnOuLh96X6ZxokZFK+qNZb+BHfRDwUvVWgCDh0sIbVaHP6x4VU4lcRc5Sz4/sQHso 0LhcKWHwR1hpS1JuwmOQ0EtVP0i7rVVbZcVN+VNz0SsDVSag7mYYcnLqGzC76U2HuF R36jrbqwcu6NiLDhBXucu5XNESpmg+/Cza2XI3Zc= Subject: patch "iio: adc: aspeed: clear reference voltage bits before configuring" added to char-misc-linus To: billy_tsai@aspeedtech.com,Jonathan.Cameron@huawei.com,Stable@vger.kernel.org From: Date: Sun, 29 Mar 2026 14:50:16 +0200 Message-ID: <2026032916-referable-gloating-e23c@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit This is a note to let you know that I've just added the patch titled iio: adc: aspeed: clear reference voltage bits before configuring to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From 7cf2f6ed8e7a3bf481ef70b6b4a2edb8abfa5c57 Mon Sep 17 00:00:00 2001 From: Billy Tsai Date: Tue, 3 Mar 2026 10:38:26 +0800 Subject: iio: adc: aspeed: clear reference voltage bits before configuring vref Ensures the reference voltage bits are cleared in the ADC engine control register before configuring the voltage reference. This avoids potential misconfigurations caused by residual bits. Fixes: 1b5ceb55fec2 ("iio: adc: aspeed: Support ast2600 adc.") Signed-off-by: Billy Tsai Cc: Signed-off-by: Jonathan Cameron --- drivers/iio/adc/aspeed_adc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c index 4be44c524b4d..83a9885b9ae4 100644 --- a/drivers/iio/adc/aspeed_adc.c +++ b/drivers/iio/adc/aspeed_adc.c @@ -415,6 +415,7 @@ static int aspeed_adc_vref_config(struct iio_dev *indio_dev) } adc_engine_control_reg_val = readl(data->base + ASPEED_REG_ENGINE_CONTROL); + adc_engine_control_reg_val &= ~ASPEED_ADC_REF_VOLTAGE; ret = devm_regulator_get_enable_read_voltage(data->dev, "vref"); if (ret < 0 && ret != -ENODEV) -- 2.53.0